SGN
# SGN

SGN can refer to:

* SGN (company), a gas distribution company operating in Scotland and southern England
* The airport code for Tan Son Nhat International Airport, Ho Chi Minh City, Vietnam
* The National Rail station code for South Greenford railway station, London, England
* Sélection de Grains Nobles, a French term for sweet wines made from grapes affected by noble rot
* Some Good News, a YouTube series
* Samsung Galaxy Note, a series of mobile phones
* Seattle Gay News, owner of the sgn.org domain

## In mathematics

* sgn(x), the sign function
* sgn(σ), the signature of a permutation
